1. An elastic tie plate under a railroad tie, comprising: the elastic tie plate comprises an elastic tie plate body (1), wherein the elastic tie plate body (1) is arranged below a railway sleeper and is provided with a plurality of through holes (10) penetrating through the surface of the railway sleeper.

2. An elastic tie plate under a railway sleeper as claimed in claim 1, characterized in that the elastic tie plate body (1) is a rectangular plate and is integrally formed of rubber, polyurethane or thermoplastic elastomer material.

3. An elastic tie plate under a railway sleeper as claimed in claim 1, characterized in that said through holes (10) are uniformly arranged on the plate surface of said elastic tie plate body (1).

4. An elastic tie plate under a railway sleeper as claimed in claim 3, characterized in that the shape of said through-holes (10) is circular, rectangular, triangular or pentagonal.

5. The elastic tie plate under a railway sleeper, according to claim 1, characterized in that said elastic tie plate body (1) has a thickness of 3-20 mm.

6. An elastic tie plate under a railway sleeper according to claim 1, characterized in that the elastic tie plate body (1) can be connected to the sleeper by means of an adhesive or mechanical anchoring connection.

7. An elastic tie plate under a railway sleeper as claimed in claim 1, characterized in that the length to width ratio of the elastic tie plate body (1) is 25: 6.

Background

The model selection design of a track structure in the railway construction technology is a key link influencing the operation quality of a line, the track structure adopted in the existing railway line in China at present is various in form, and ballast tracks or ballastless track structures of different types and different grades are laid in foundation sections under different lines such as a roadbed, a bridge and a tunnel. Whether there is a ballast track or a ballastless track structure, if the stability, comfort and safety of train operation are to be ensured, reasonable elasticity is required to be provided by the track structure.

The mode of an elastic base plate is adopted to provide elasticity in the ballast-free track and ballast track structure of China, but the existing elastic base plate has the defects of complex manufacturing process and high economic cost, and the long-term retention performance of the elasticity is poor.

Therefore, how to provide an elastic tie plate under a railroad tie, which can overcome the above problems, is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present invention provides an elastic tie plate under a railroad tie.

In order to achieve the purpose, the invention adopts the following technical scheme:

an elastomeric tie plate under a railroad tie comprising: the elastic tie plate comprises an elastic tie plate body, wherein the elastic tie plate body is arranged below the railway sleeper and is provided with a plurality of through holes penetrating through the surface of the railway sleeper.

According to the technical scheme, compared with the prior art, the elastic base plate under the railway sleeper is provided, the elastic base plate body is provided with the plurality of through holes, when the load of the sleeper in the vertical direction acts on the elastic base plate body, the elastic base plate body has a space which is elastically deformed towards the periphery due to the through holes, and therefore the elastic base plate body has certain elasticity as a whole, the elastic base plate body has required elastic deformation, and meanwhile, the elastic base plate body is few in used materials, simple in processing process and better in economical efficiency.

Preferably, the elastic base plate body is a rectangular plate and is integrally formed by rubber, polyurethane or thermoplastic elastomer materials. The material has excellent flexibility at room temperature and low temperature, and excellent flex crack resistance, high elasticity, stress relaxation resistance and creep property.

Preferably, the through holes are uniformly arranged on the plate surface of the elastic base plate body. This setting can guarantee that its deformation is even when the atress of elastic backing plate body, can provide stable and even elasticity output.

Preferably, the shape of the through hole is circular, rectangular, triangular or pentagonal. The arrangement enables the elastic base plate body to have different elastic deformation amounts.

Preferably, the thickness of the elastic cushion plate body is 3-20 mm. This setting guarantees that this elastic backing plate body has reliable elastic deformation volume.

Preferably, the resilient pad body can be connected to the sleeper by means of an adhesive or mechanically anchored connection. This setting can guarantee that elastic backing plate body and sleeper can be reliable be connected.

Preferably, the length-width ratio of the elastic pad body is 25: 6. This arrangement ensures that it fits the tie.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a front view of an elastomeric pad under a railroad tie in accordance with a first embodiment of the present invention;

FIG. 2 is a front view of an elastomeric pad under a railroad tie in accordance with a second embodiment of the present invention;

FIG. 3 is a front view of an elastomeric pad under a railroad tie in accordance with a third embodiment of the present invention;

fig. 4 is a front view of an elastic pad under a railroad tie in a fourth embodiment of the invention.

In the figure:

1 is an elastic cushion plate body, and 10 is a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention discloses an elastic tie plate under a railway sleeper, wherein a plurality of through holes 10 are formed in an elastic tie plate body 1, when a load of the sleeper in the vertical direction acts on the elastic tie plate body 1, the elastic tie plate body 1 has a space capable of elastically deforming towards the periphery due to the through holes 10, and therefore the elastic tie plate body 1 has certain elasticity as a whole, the elastic tie plate body 1 has required elastic deformation, and meanwhile, the elastic tie plate body 1 is made of a small amount of materials, the resistance between the elastic tie plate body 1 and the railway sleeper is large, the whole stability is good, the processing process is simple, and the economical efficiency is good.

Example one

Fig. 1 is a schematic view of an elastic tie plate under a railroad tie according to the present embodiment, including: the equal glossy elastic backing plate body 1 of both sides face, elastic backing plate body 1 arranges in railway sleeper below and its set up a plurality of through-holes 10 that run through its face.

More specifically, the elastic base plate body 1 is a rectangular plate and is integrally formed by rubber materials.

More specifically, the through holes 10 are uniformly arranged on the plate surface of the elastic base plate body 1.

More specifically, the shape of the through hole 10 is circular, rectangular, triangular, pentagonal or other regular geometric shapes, and the shape of the through hole 10 in this embodiment is circular and has a diameter of 35 mm.

More specifically, the thickness of the elastic cushion body 1 is 3 to 20 mm, and the thickness of the elastic cushion body 1 in this embodiment is 7 mm.

More specifically, the elastic pad body 1 is connected to a sleeper (not shown) by means of bonding.

More specifically, the aspect ratio of the elastic cushion body 1 is 25: 6, and the length of the elastic cushion body 1 in this embodiment is 1000 mm, and the width is 240 mm.

The through-hole 10 has been seted up on the backing plate body in this embodiment, when the sleeper is on the load of vertical direction is using elastic backing plate body 1, elastic backing plate body 1 because the existence of through-hole 10 makes it receive the extrusion occasionally sufficient space to warping all around, and then the elasticity that makes elastic backing plate body 1 have.

It was measured that the resilient sleeper body 1 in this embodiment is arranged at the bottom of the concrete sleeper, and the support rigidity of the concrete sleeper can be in the range of 80-120 kN/mm. When the train passes through, the displacement range of the sleeper in the vertical direction is 1.2-1.6 mm. After 200 ten thousand fatigue loads, the rigidity change rate of the elastic cushion plate body 1 in the embodiment is within 15%.

After the existing elastic base plate is arranged at the bottom of the concrete sleeper, the maximum value of the supporting rigidity of the concrete sleeper does not exceed 60kN/mm, and the displacement of the sleeper in the vertical direction exceeds 2 mm. After 200 ten thousand fatigue loads, the rigidity change rate of the existing elastic cushion plate is 20-40%.

The existing elastic backing plate is elastic through micropore foaming or arrangement of a lug boss, a groove and the like, and the production process and the die of the elastic backing plate with the structural requirement are complex. The elastic backing plate body 1 in the embodiment does not need microcellular foaming, and the elastic backing plate body 1 does not need to be provided with a boss or a groove, so that the production and the processing are convenient.

Example two

Fig. 2 is a schematic view of an elastic tie plate under a railroad tie according to the present embodiment, including: the equal glossy elastic backing plate body 1 of both sides face, elastic backing plate body 1 arranges in railway sleeper below and its set up a plurality of through-holes 10 that run through its face.

More specifically, the elastic base plate body 1 is a rectangular plate and is integrally formed by rubber materials.

More specifically, the through holes 10 are uniformly arranged on the plate surface of the elastic base plate body 1.

More specifically, the through-hole 10 has a regular pentagonal shape and an circumscribed circle diameter of 40 mm.

More specifically, the thickness of the elastic cushion body 1 is 3 to 20 mm, and the thickness of the elastic cushion body 1 in this embodiment is 9 mm.

More specifically, the elastic pad body 1 is connected to a sleeper (not shown) by means of bonding.

More specifically, the aspect ratio of the elastic cushion body 1 is 25: 6, and the length of the elastic cushion body 1 in this embodiment is 1000 mm, and the width is 240 mm.

EXAMPLE III

Fig. 3 is a view of an elastic pad under a railroad tie in this embodiment, which includes: the equal glossy elastic backing plate body 1 of both sides face, elastic backing plate body 1 arranges in railway sleeper below and its set up a plurality of through-holes 10 that run through its face.

More specifically, the elastic base plate body 1 is a rectangular plate and is integrally formed by rubber materials.

More specifically, the through holes 10 are uniformly arranged on the plate surface of the elastic base plate body 1.

More specifically, the through hole 10 has a long shape with two arc ends, a maximum length of 200 mm and a width of 30 mm, and a length direction of the through hole 10 is perpendicular to a length direction of the elastic pad body 1.

More specifically, the thickness of the elastic cushion body 1 is 3 to 20 mm, and the thickness of the elastic cushion body 1 in this embodiment is 12 mm.

More specifically, the elastic pad body 1 is connected to a sleeper (not shown) by means of bonding.

More specifically, the aspect ratio of the elastic cushion body 1 is 25: 6, and the length of the elastic cushion body 1 in this embodiment is 1000 mm, and the width is 240 mm.

Example four

Fig. 4 is a view of an elastic pad under a railroad tie in the present embodiment, which includes: the equal glossy elastic backing plate body 1 of both sides face, elastic backing plate body 1 arranges in railway sleeper below and its set up a plurality of through-holes 10 that run through its face.

More specifically, the elastic base plate body 1 is a rectangular plate and is integrally formed by rubber materials.

More specifically, the through holes 10 are uniformly arranged on the plate surface of the elastic base plate body 1.

More specifically, the through hole 10 has a rectangular shape, a maximum length of 200 mm and a width of 30 mm, and a length direction of the through hole 10 is perpendicular to a length direction of the elastic pad body 1.

More specifically, the thickness of the elastic cushion body 1 is 3 to 20 mm, and the thickness of the elastic cushion body 1 in this embodiment is 12 mm.

More specifically, the elastic pad body 1 is connected to a sleeper (not shown) by means of bonding.

More specifically, the aspect ratio of the elastic cushion body 1 is 25: 6, and the length of the elastic cushion body 1 in this embodiment is 1000 mm, and the width is 240 mm.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.